User manual

№SR-ZSV00039 － 38 －
Motor Business Unit, Appliances Company, Panasonic Corporation
Specify switching level and hysteresis in accordan② ce with switching conditions.
Specify switching delay time③ 。
The switching delay time specifies a period of delay time for switching from 2
nd
gain to 1
st
gain.
When switching from 2
nd
gain to 1
st
gain, the switching conditions must be satisfied during a period of switching de-
lay time.
Specify position gain switching time④
When switching gains, velocity loop gain, speed integration constant, speed detection filter, and torque filtering con-
stant are switched instantaneously. However, position loop gain can be gradually switched to avoid problems
caused by sudden change to a high gain.
When “0” is specified for Pr1.19 “Position gain switching time”
When “5” is specified for Pr1.19 “Position gain switching time”
High gain
Low gain
166µs
High gain
Low gain
0.5ms
1st gain 2nd gain 1st gain
Switching
level
Hysteresis
Hysteresis
Gain switching delay
Cancelled because the con-
ditions are not satisfied.
1st gain
2nd gain
Switching
level
1st gain